> it's naive to imagine that if you introduce a weakness into a system, you will be the only one to use it. A lot of the IT industry feels that's a betrayal. [...] The two governments have elevated the fight against organised hacker gangs and militarised cyber-attacks from states such as China to the rank of a top national security priority. Yet at the same time their spying branches have actively aided cybercriminals by weakening encryption.
and the effect this has on users through lowered confidence in the privacy of exchanged information.
And if the agencies are steering people towards crypto they know is broken but the public do not?
The problem comes because the win of the cold war somewhat skewed the western view of their own capabilities.
When NSA had adversaries that they deemed worthy - they took the effort to strengthen everyone's communications. Right now while looking at the others with disdain and (wrongly) refocused the efforts on terrorism - they prefer weak networks.
I am not sure if what I said above is even possible, but I hope it is. Trying to remove the side effects of humanity from something created by humans is not an easy task.
It will always be an arms race between defenders and attackers, because the cost of everything changes over time. You will always have to worry about some genius getting struck by a satori that makes your entire encryption scheme worthless.
The problem is akin to someone in the shipbuilding business worrying about the discovery of a beam that can reduce the strength of a 1-cm thick steel plate to 1-cm thick toilet paper--and the effect is not attenuated by normal matter. The inventor could build a facility in the hinterlands that could instantly and tracelessly sink any steel ship, anywhere in the world.
That is what encryption designers are up against. TBL is upset because intel agencies have been quietly quashing non-vulnerable schemes and/or actively promoting vulnerable ones, paying no heed to the possibility that their enemies might also have some geniuses, or that their own geniuses' ideas might replicate and leak outside of their info-fortress.